/*
 * Copyright 2008 Bushel Project Members (http://bushel.googlecode.com/)
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.googlecode.bushel.util;

import java.util.Comparator;

public class VersionComparator implements Comparator<Version> {

    public static final Comparator<Version> ASCENDING = new VersionComparator(false);
    public static final Comparator<Version> DESCENDING = new VersionComparator(true);

    public final boolean reverse;

    private VersionComparator(boolean reverse) {
        this.reverse = reverse;
    }

    public int compare(Version objA, Version objB) {
        final int val = objA.compareTo(objB);
        return (reverse ? -val : val);
    }

}
